error-signal amplifier

technology

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June 26, 2026

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An error-signal amplifier is a crucial component within a servomechanism, which is an automatic device designed to correct the performance of a mechanism through error-sensing feedback. This type of amplifier receives an "error signal" that is generated by comparing the desired state of a device with its actual state. The amplifier then boosts this error signal, enabling a low-power control signal to operate a high-powered device, such as a servomotor, to make the necessary corrections. These systems are vital for applications requiring precise control, like satellite-tracking antennas or automatic machine tools, allowing for high-power operations to be managed by low-power signals with a power ratio that can be billions to one.1

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servomechanism
…device, an error detector, an error-signal amplifier, and a device to perform any necessary error corrections (the servomotor). In the controlled device, that which is being regulated is usually position. This device must, therefore, have some means of generating a signal (such as a voltage), called the feedback signal, that…
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…device, an error detector, an error-signal amplifier, and a device to perform any necessary error corrections (the servomotor). In the controlled device, that which is being regulated is usually position. This device must, therefore, have some means of generating a signal (such as a voltage), called the feedback signal, that…
Read More